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EP1567209B1 - Device for temporarily retaining a protective needle cap of an injection apparatus - Google Patents

Device for temporarily retaining a protective needle cap of an injection apparatus Download PDF

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Publication number
EP1567209B1
EP1567209B1 EP03811706A EP03811706A EP1567209B1 EP 1567209 B1 EP1567209 B1 EP 1567209B1 EP 03811706 A EP03811706 A EP 03811706A EP 03811706 A EP03811706 A EP 03811706A EP 1567209 B1 EP1567209 B1 EP 1567209B1
Authority
EP
European Patent Office
Prior art keywords
receiving portion
housing
injection apparatus
holding means
loading station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03811706A
Other languages
German (de)
French (fr)
Other versions
EP1567209A1 (en
Inventor
Edgar Hommann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tecpharma Licensing AG
Original Assignee
Tecpharma Licensing AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tecpharma Licensing AG filed Critical Tecpharma Licensing AG
Publication of EP1567209A1 publication Critical patent/EP1567209A1/en
Application granted granted Critical
Publication of EP1567209B1 publication Critical patent/EP1567209B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M2005/3208—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles by application of rotational movement to the needle hub, e.g. by use of electrically driven toothed wheels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
    • A61M2005/3215—Tools enabling the cap placement

Definitions

  • the invention relates to a device for temporarily holding a needle protection cap of an injection device, comprising a housing, a receiving part arranged in the housing for receiving the injection device and holding means.
  • a needle cap holder in which a hypodermic syringe can be inserted through an opening in a holder housing and in the housing into a gripping mechanism with a rotating plate.
  • the gripping mechanism comprises various clamping elements, which are pivotally coupled to the rotary plate.
  • a rotation of the rotary plate causes a pivoting of the clamping elements.
  • the rotary plate is biased by a spring such that the clamping elements are in a holding position for holding the needle cap.
  • an arm (60) In order to insert a syringe into the holder, an arm (60) must be manually pressed beforehand, which causes the rotation of the rotary plate such that the clamping elements are pivoted from its holding position to a release position.
  • the rotary plate When releasing the arm, the rotary plate is rotated by its bias back into the holding position, so that the clamping elements engage the needle cap. Now, if the syringe is pulled out of the holder, the needle cap remains in the holder, as it is held by the clamping elements.
  • the invention has the task of proposing a device with which the needle cap can be withdrawn at an anyway required operation for the preparation of an injection device and then placed again.
  • the inventive device is characterized in that the receiving part is movable in the housing, that in a first position of the receiving part, the holding means in a release position and that in a second position of the receiving part, the holding means are in a holding position.
  • the receiving part is movable by rotation from its first position to its second position.
  • This solution is particularly advantageous for injection devices which are rotationally disassembled for the purpose of inserting and removing a syringe.
  • the holding means are operated simultaneously with this rotation.
  • the holding means are designed as clamping pieces which are parallel to the longitudinal axis of the device extending pivot axes are pivotable against the longitudinal axis. This allows a particularly simple construction of the device.
  • the receiving part includes a Andrückkurve and optionally a release curve, there is a forced control of the clamping parts, which allows a particularly safe operation of the device.
  • display means are provided, which make visible from the outside, in which rotational position of the receiving part is located.
  • the display means preferably include a window in the housing, through which in each rotational position of the receiving part another, at this existing marking area is visible.
  • Another aspect of the invention relates to a charging station for the preparation of an injection device, which contains a device according to the invention.
  • the charging stations may contain other functional elements which serve to prepare an injection device, in particular an autoinjector.
  • the inventive device is preferably removed removably received in the charging station.
  • a particular embodiment of the charging station is simultaneously designed as a container for storing the device and parts of an injection device. This allows the user of an injection device, easy to carry the necessary items with him and keep clear.
  • FIG. 1 is shown for better understanding of the relationship of the front part 1 of an autoinjector with syringe 2 received therein.
  • the front part 1 is assembled before use of the autoinjector by means of a bayonet-type connection with a drive part, not shown, which contains the necessary elements for the automatic execution of an injection, in particular springs.
  • the injection needle of this syringe 2 is covered in a known manner with a plugged needle cap 3.
  • the device according to the invention serves to remove this needle protection cap 3 before using the autoinjector and to replace it after the use of the autoinjector.
  • the invention uses the operations of assembling and disassembling the autoinjector before or after the injection.
  • the in the FIGS. 2 to 5 illustrated device 30 consists of a housing 4, which is closed at the bottom with a housing bottom 5, which is held by latching cams 21 which engage in opening 15 of the housing 4.
  • a cam sleeve 6 is rotatably supported, wherein the rotation is limited by arranged on the cam sleeve 6 stops 17, which cooperate with a non-visible in the figures rib in the housing 4.
  • a window 8 arranged in the housing 4 releases the view of one of the two, preferably colored, marking areas 9 provided corresponding to the respective rotational position of the cam sleeve 6.
  • An inner flange 10 arranged in the upper region of the housing 4 supports the cam sleeve 6 both radially and axially, and an outer flange 11 is provided in the lower region of the cam sleeve 6, with which the cam sleeve 6 is guided radially in the housing 4.
  • the cam sleeve has the task of receiving in its interior the front part 1 of an auto-injector. Upwardly projecting tabs 16 and / or provided in the interior of the cam sleeve, not shown ribs provide a rotationally fixed connection between the cam sleeve 6 and the front part 1 of the autoinjector.
  • clamping pieces 7 From the housing bottom 5 are four bearing pins 20 upwards, on which four clamping pieces 7 are pivotally mounted. These clamping pieces 7 have the task of grasping and holding the needle cap 3 when the auto-injector is assembled and vice versa to release the needle cap 3 again when the autoinjector is taken apart again for the purpose of removing the spent syringe 2. As FIG. 4 shows, 7 gripping ribs 24 are provided on the clamping pieces, which are pressed into the relatively soft material of the needle cap 3 in order to grip them safely. The movement of the clamping pieces 7 is controlled as follows by a curve part 18 formed at the bottom of the cam sleeve 6.
  • a Andschreibkurve 22 which presses the clamping pieces 7 inward when the cam sleeve 6 is rotated clockwise. This is best in FIG. 4 to recognize. If the cam sleeve 6 is rotated in the counterclockwise direction, engages disposed within the Andschreibkurve 22 release cam 23, the best in FIG. 3 can be seen on control pins 19, which are arranged on each clamping piece 7 projecting upward and urges the clamping pieces 7 to the outside.
  • the curve part 18 of the cam sleeve 6 is guided with its outer circumference 25 in the housing bottom 5, wherein the housing bottom 5 integrally formed tongues 26 cooperate with the outer region 25 such that the cam sleeve 6 engages in its two rotational end positions.
  • the front part 1 of an auto-injector is inserted from above into the cam sleeve 6, and in the front part 1 a syringe filled with an active substance with an injection needle and a needle cap 3 is inserted. Then the drive part of the auto-injector is placed and rotated clockwise.
  • the auto-injector is inserted with its front part 1 in the cam sleeve 6, the injection needle slides into the needle cap 3 and the drive part of the autoinjector is rotated counterclockwise to its connection with the front part. 1 to solve.
  • the cam sleeve is entrained by this rotation and the release cam 23 ensures that the clamping pieces 7 release the needle cap.
  • the syringe 2 can be removed together with the reassembled needle cap 3 from the front part 1.
  • FIG. 5 shows a charging station 27 for an auto-injector, in which the device 30 described above is held in the position of use.
  • spring tongues 12 are provided with locking lugs 13, which engage in latching recesses 14 which are provided in a receptacle 34 of the charging station 27.
  • the charging station is in the example shown at the same time a container consisting of a lower part 28, a lid 29 and a shutter 31.
  • the example shown includes a receiving trough 32 for the drive part of the autoinjector, a receiving trough 33 for the device 30, a clamping pin 35 for tensioning the springs of the autoinjector and a further receptacle 36 for a tool such as a key for tightening and loosening a hypodermic needle Luer-Lock.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A device and method for removing and replacing a needle-protecting cover associated with an injection apparatus, the device comprising a housing, a receptacle in the housing for accommodating the injection apparatus, and a holding mechanism, wherein the receptacle is movable in the housing and, in a first position of the receptacle, the holding mechanism is in a releasing position and, in a second position of the receptacle, the holding mechanism is in a holding position.

Description

Die Erfindung betrifft eine Vorrichtung zum vorübergehenden Festhalten einer Nadelschutzkappe einer Injektionsvorrichtung, enthaltend ein Gehäuse, einen im Gehäuse angeordneten Aufnahmeteil zur Aufnahme der Injektionsvorrichtung und Haltemittel.The invention relates to a device for temporarily holding a needle protection cap of an injection device, comprising a housing, a receiving part arranged in the housing for receiving the injection device and holding means.

Bei üblichen, manuell zu betätigenden Injektionsspritzen wird in der Regel die Nadelschutzkappe vor dem Gebrauch von Hand abgenommen und nach dem Gebrauch von Hand wieder aufgesetzt. Gerade beim zuletzt genannten Vorgang besteht für den Benutzer eine erhebliche Verletzungsgefahr durch die gebrauchte Injektionsnadel. Es wurden deshalb schon verschiedene Hilfsmittel zum Abziehen und insbesondere zum Aufsetzen von Nadelschutzkappen vorgeschlagen, die aber allesamt einen separaten Arbeitsschritt erfordern.In conventional, manually operated hypodermic syringes, the needle cap is usually removed by hand before use and put back on by hand after use. Especially in the latter case there is a considerable risk of injury to the user by the used injection needle. It has therefore been proposed various tools for removing and especially for putting on needle caps, but all require a separate step.

Aus dem Dokument US 5,356,385 ist ein Halter für Nadelkappen bekannt, bei dem eine Injektionsspritze durch eine Öffnung in ein Haltergehäuse und in dem Gehäuse in einen Greifmechanismus mit einer Drehplatte eingeführt werden kann. Der Greifinechanismus umfasst diverse Klemmelemente, die an der Drehplatte schwenkbar angekoppelt sind. Eine Drehung der Drehplatte bewirkt ein Verschwenken der Klemmelemente. Die Drehplatte ist mittels einer Feder derart vorgespannt, dass sich die Klemmelemente in einer Halteposition zum Halten der Nadelschutzkappe befinden. Um eine Spritze in den Halter einführen zu können, muss vorher manuell ein Arm (60) eingedrückt werden, der die Drehung der Drehplatte derart bewirkt, dass die Klemmelemente von ihrer Halteposition in eine Freigabeposition geschwenkt werden. Beim Lösen des Armes wird die Drehplatte mittels ihrer Vorspannung zurück in die Halteposition gedreht, sodass die Klemmelemente an der Nadelschutzkappe angreifen. Wird nun die Spritze aus dem Halter gezogen, verbleibt die Nadelschutzkappe im Halter, da sie von den Klemmelementen festgehalten wird.From the document US 5,356,385 For example, a needle cap holder is known in which a hypodermic syringe can be inserted through an opening in a holder housing and in the housing into a gripping mechanism with a rotating plate. The gripping mechanism comprises various clamping elements, which are pivotally coupled to the rotary plate. A rotation of the rotary plate causes a pivoting of the clamping elements. The rotary plate is biased by a spring such that the clamping elements are in a holding position for holding the needle cap. In order to insert a syringe into the holder, an arm (60) must be manually pressed beforehand, which causes the rotation of the rotary plate such that the clamping elements are pivoted from its holding position to a release position. When releasing the arm, the rotary plate is rotated by its bias back into the holding position, so that the clamping elements engage the needle cap. Now, if the syringe is pulled out of the holder, the needle cap remains in the holder, as it is held by the clamping elements.

Die Erfindung hat die Aufgabe, eine Vorrichtung vorzuschlagen, mit welcher die Nadelschutzkappe bei einem ohnehin erforderlichen Arbeitsgang zur Vorbereitung einer Injektionsvorrichtung abgezogen und danach auch wieder aufgesetzt werden kann.The invention has the task of proposing a device with which the needle cap can be withdrawn at an anyway required operation for the preparation of an injection device and then placed again.

Zur Lösung dieser Aufgabe ist die erfindungsgemässe Vorrichtung dadurch gekennzeichnet, dass der Aufnahmeteil im Gehäuse bewegbar ist, dass in einer ersten Lage des Aufnahmeteils die Haltemittel in einer Freigabeposition sind und dass in einer zweiten Lage des Aufnahmeteils die Haltemittel in einer Halteposition sind.To achieve this object, the inventive device is characterized in that the receiving part is movable in the housing, that in a first position of the receiving part, the holding means in a release position and that in a second position of the receiving part, the holding means are in a holding position.

Nach einer Ausführungsart der Erfindung ist der Aufnahmeteil durch eine Drehung von seiner ersten Lage in seine zweite Lage bewegbar. Diese Lösung ist insbesondere für Injektionsvorrichtungen vorteilhaft, die zwecks Einsetzens und Entnehmens einer Spritze drehend auseinander genommen werden. Die Haltemittel werden gleichzeitig mit diesem Drehen betätigt.According to one embodiment of the invention, the receiving part is movable by rotation from its first position to its second position. This solution is particularly advantageous for injection devices which are rotationally disassembled for the purpose of inserting and removing a syringe. The holding means are operated simultaneously with this rotation.

Gemäss einer weiteren Ausführungsart der Erfindung sind die Haltemittel als Klemmstücke ausgebildet, die um parallel zur Längsachse der Vorrichtung verlaufende Schwenkachsen gegen die Längsachse hin schwenkbar sind. Dies ermöglicht einen besonders einfachen Aufbau der Vorrichtung. Wenn nach weiteren Ausführungsarten der Erfindung der Aufnahmeteil eine Andrückkurve und gegebenenfalls eine Lösekurve enthält, ergibt sich eine Zwangssteuerung der Klemmteile, was einen besonders sicheren Betrieb der Vorrichtung ermöglicht.According to a further embodiment of the invention, the holding means are designed as clamping pieces which are parallel to the longitudinal axis of the device extending pivot axes are pivotable against the longitudinal axis. This allows a particularly simple construction of the device. If according to further embodiments of the invention, the receiving part includes a Andrückkurve and optionally a release curve, there is a forced control of the clamping parts, which allows a particularly safe operation of the device.

Nach einer weiteren Ausführungsart der Erfindung sind Anzeigemittel vorgesehen, welche von aussen sichtbar machen, in welcher Drehlage der Aufnahmeteil sich befindet. Die Anzeigemittel enthalten vorzugsweise ein Fenster im Gehäuse, durch welches in jeder Drehlage des Aufnahmeteils ein anderer, an diesem vorhandener Markierbereich sichtbar ist. Diese Massnahmen machen den Betrieb der Vorrichtung noch bequemer und sicherer.According to a further embodiment of the invention display means are provided, which make visible from the outside, in which rotational position of the receiving part is located. The display means preferably include a window in the housing, through which in each rotational position of the receiving part another, at this existing marking area is visible. These measures make the operation of the device even more convenient and safer.

Ein anderer Aspekt der Erfindung betrifft eine Ladestation für die Vorbereitung einer Injektionsvorrichtung, welche eine erfindungsgemässe Vorrichtung enthält. Dabei kann die Ladestationen noch andere funktionelle Ele- , mente enthalten, die der Vorbereitung einer Injektionsvorrichtung, insbesondere eines Autoinjektors, dienen. Die erfindungsgemässe Vorrichtung ist vorzugsweise herausnehmbar in der Ladestation aufgenommen. Eine besondere Ausführungsart der Ladestation ist gleichzeitig als Behältnis zur Aufbewahrung der Vorrichtung und von Teilen einer Injektionsvorrichtung ausgebildet. Dies ermöglicht dem Benutzer einer Injektionsvorrichtung, die benötigten Einzelteile einfach mit sich zu tragen und übersichtlich aufzubewahren.Another aspect of the invention relates to a charging station for the preparation of an injection device, which contains a device according to the invention. In this case, the charging stations may contain other functional elements which serve to prepare an injection device, in particular an autoinjector. The inventive device is preferably removed removably received in the charging station. A particular embodiment of the charging station is simultaneously designed as a container for storing the device and parts of an injection device. This allows the user of an injection device, easy to carry the necessary items with him and keep clear.

Eine Ausführungsart der Erfindung wird nachfolgend unter Bezugnahme auf die beiliegenden Zeichnungen beispielhaft beschrieben. Es zeigt:

Figur 1
eine aufgeschnittene, perspektivische Ansicht des Vorderteils eines Autoinjektors,
Figur 2
eine Explosionsansicht eines Ausführungsbeispiels der Erfindung,
Figur 3
eine perspektivische Ansicht einer Einzelheit aus Figur 2,
Figur 4
einen Querschnitt durch den unteren Teil der Vorrichtung nach Figur 2 und
Figur 5
eine Ladestation mit einer Vorrichtung nach Figur 2.
An embodiment of the invention will now be described by way of example with reference to the accompanying drawings. It shows:
FIG. 1
a cutaway, perspective view of the front part of an auto-injector,
FIG. 2
an exploded view of an embodiment of the invention,
FIG. 3
a perspective view of a detail FIG. 2 .
FIG. 4
a cross section through the lower part of the device according to FIG. 2 and
FIG. 5
a charging station with a device according to FIG. 2 ,

In Figur 1 ist zum Besseren Verständnis des Zusammenhangs der Vorderteil 1 eines Autoinjektors mit darin aufgenommener Spritze 2 dargestellt. Der Vorderteil 1 wird vor der Verwendung des Autoinjektors mittels einer bajonettartigen Verbindung mit einem nicht dargestellten Antriebsteil zusammengesetzt, der die zur automatischen Ausführung einer Injektion erforderlichen Elemente, insbesondere Federn enthält. Die Injektionsnadel dieser Spritze 2 ist in bekannter Weise mit einer aufgesteckten Nadelschutzkappe 3 abgedeckt. Die erfindungsgemässe Vorrichtung dient dazu, vor der Verwendung des Autoinjektors diese Nadelschutzkappe 3 abzuziehen und sie nach der Verwendung des Autoinjektors wieder aufzusetzen. Dazu nutzt die Erfindung die Vorgänge des Zusammensetzens und Auseinandernehmens des Autoinjektors vor beziehungsweise nach der Injektion.In FIG. 1 is shown for better understanding of the relationship of the front part 1 of an autoinjector with syringe 2 received therein. The front part 1 is assembled before use of the autoinjector by means of a bayonet-type connection with a drive part, not shown, which contains the necessary elements for the automatic execution of an injection, in particular springs. The injection needle of this syringe 2 is covered in a known manner with a plugged needle cap 3. The device according to the invention serves to remove this needle protection cap 3 before using the autoinjector and to replace it after the use of the autoinjector. For this purpose, the invention uses the operations of assembling and disassembling the autoinjector before or after the injection.

Die in den Figuren 2 bis 5 dargestellte Vorrichtung 30 besteht aus einem Gehäuse 4, das unten mit einem Gehäuseboden 5 verschlossen ist, welcher durch Rastnocken 21 gehalten ist, die in Öffnung 15 des Gehäuses 4 eingreifen. Im Gehäuse 4 ist eine Kurvenhülse 6 drehbar gehalten, wobei die Drehbarkeit durch an der Kurvenhülse 6 angeordnete Anschläge 17 begrenzt wird, die mit einer in den Figuren nicht sichtbaren Rippe im Gehäuse 4 zusammenwirken. Ein im Gehäuse 4 angeordnetes Fenster 8 gibt entsprechend der jeweiligen Drehlage der Kurvenhülse 6 den Blick auf einen der beiden an ihr vorgesehenen, vorzugsweise farbigen Markierbereiche 9 frei. Ein im oberen Bereich des Gehäuses 4 angeordneter Innenflansch 10 stützt die Kurvenhülse 6 sowohl radial als auch axial und im unteren Bereich der Kurvenhülse 6 ist ein Aussenflansch 11 vorgesehen, mit dem die Kurvenhülse 6 radial im Gehäuse 4 geführt wird. Die Kurvenhülse hat die Aufgabe, in ihrem Inneren den Vorderteil 1 eines Autoinjektors aufzunehmen. Nach oben ragende Lappen 16 und/oder im Inneren der Kurvenhülse vorgesehene, nicht dargestellte Rippen sorgen für eine drehfeste Verbindung zwischen der Kurvenhülse 6 und dem Vorderteil 1 des Autoinjektors.The in the FIGS. 2 to 5 illustrated device 30 consists of a housing 4, which is closed at the bottom with a housing bottom 5, which is held by latching cams 21 which engage in opening 15 of the housing 4. In the housing 4, a cam sleeve 6 is rotatably supported, wherein the rotation is limited by arranged on the cam sleeve 6 stops 17, which cooperate with a non-visible in the figures rib in the housing 4. A window 8 arranged in the housing 4 releases the view of one of the two, preferably colored, marking areas 9 provided corresponding to the respective rotational position of the cam sleeve 6. An inner flange 10 arranged in the upper region of the housing 4 supports the cam sleeve 6 both radially and axially, and an outer flange 11 is provided in the lower region of the cam sleeve 6, with which the cam sleeve 6 is guided radially in the housing 4. The cam sleeve has the task of receiving in its interior the front part 1 of an auto-injector. Upwardly projecting tabs 16 and / or provided in the interior of the cam sleeve, not shown ribs provide a rotationally fixed connection between the cam sleeve 6 and the front part 1 of the autoinjector.

Vom Gehäuseboden 5 stehen vier Lagerzapfen 20 nach oben vor, auf denen vier Klemmstücke 7 schwenkbar gelagert sind. Diese Klemmstücke 7 haben die Aufgabe, die Nadelschutzkappe 3 zu ergreifen und festzuhalten, wenn der Autoinjektor zusammengesetzt wird und umgekehrt die Nadelschutzkappe 3 wieder freizugeben, wenn der Autoinjektor zwecks Entnahme der verbrauchten Spritze 2 wieder auseinander genommen wird. Wie Figur 4 zeigt, sind an den Klemmstücken 7 Greifrippen 24 vorgesehen, welche in das relativ weiche Material der Nadelschutzkappe 3 eingedrückt werden, um diese sicher zu greifen. Die Bewegung der Klemmstücke 7 wird wie folgt durch einen unten an der Kurvenhülse 6 geformten Kurventeil 18 gesteuert. Im Inneren des Kurventeils befindet sich eine Andrückkurve 22, welche die Klemmstücke 7 nach innen drückt, wenn die Kurvenhülse 6 im Uhrzeigersinn gedreht wird. Dies ist am Besten in Figur 4 zu erkennen. Wird die Kurvenhülse 6 im Gegenuhrzeigersinn gedreht, greift eine innerhalb der Andrückkurve 22 angeordnete Lösekurve 23, die am Besten in Figur 3 zu erkennen ist, an Steuerzapfen 19 an, die auf jedem Klemmstück 7 nach oben vorstehend angeordnet sind und drängt die Klemmstücke 7 nach außen. Der Kurventeil 18 der Kurvenhülse 6 ist mit seinem Aussenumfang 25 im Gehäuseboden 5 geführt, wobei am Gehäuseboden 5 angeformte Zungen 26 mit dem Aussenbereich 25 derart zusammenwirken, dass die Kurvenhülse 6 in ihren beiden Dreh-Endlagen einrastet.From the housing bottom 5 are four bearing pins 20 upwards, on which four clamping pieces 7 are pivotally mounted. These clamping pieces 7 have the task of grasping and holding the needle cap 3 when the auto-injector is assembled and vice versa to release the needle cap 3 again when the autoinjector is taken apart again for the purpose of removing the spent syringe 2. As FIG. 4 shows, 7 gripping ribs 24 are provided on the clamping pieces, which are pressed into the relatively soft material of the needle cap 3 in order to grip them safely. The movement of the clamping pieces 7 is controlled as follows by a curve part 18 formed at the bottom of the cam sleeve 6. Inside the curve part is a Andrückkurve 22, which presses the clamping pieces 7 inward when the cam sleeve 6 is rotated clockwise. This is best in FIG. 4 to recognize. If the cam sleeve 6 is rotated in the counterclockwise direction, engages disposed within the Andrückkurve 22 release cam 23, the best in FIG. 3 can be seen on control pins 19, which are arranged on each clamping piece 7 projecting upward and urges the clamping pieces 7 to the outside. The curve part 18 of the cam sleeve 6 is guided with its outer circumference 25 in the housing bottom 5, wherein the housing bottom 5 integrally formed tongues 26 cooperate with the outer region 25 such that the cam sleeve 6 engages in its two rotational end positions.

Zur Verwendung der Vorrichtung wird diese entweder mit einer Hand festgehalten oder vorteilhafter in eine entsprechende Ladestation 27 eingesetzt, wie dies weiter unten beschrieben wird. Dann wird von oben der Vorderteil 1 eines Autoinjektors in die Kurvenhülse 6 eingesetzt und in den Vorderteil 1 wird eine mit einem Wirkstoff gefüllte Spritze mit Injektionsnadel und Nadelschutzkappe 3 gesteckt. Dann wird der Antriebsteil des Autoinjektors aufgesetzt und im Uhrzeigersinn gedreht. Bei dieser Drehung wird - gleichzeitig oder nacheinander, je nach der zwischen den einzelnen Komponenten wirkenden Reibung - der Antriebsteil des Autoinjektors mit dem Vorderteil 1 über die erwähnte bajonettartige Verbindung gekoppelt und die Kurvenhülse 6 im Gehäuse 4 gedreht, wobei die Klemmstücke 7 durch die Andrückkurve 22 nach innen gedrängt werden und die Nadelschutzkappe 3 zwischen sich festklemmen. Im Fenster 8 ist nun ein anderer, beispielsweise grün gefärbter Bereich 9 sichtbar, der signalisiert, dass der Autoinjektor nun betriebsbereit ist und nach oben herausgezogen werden kann, wobei die Nadelschutzkappe 3 zwischen den Klemmstücken 7 verbleibt. Nach der Injektion spielt sich das Ganze in umgekehrter Reihenfolge ab, der Autoinjektor wird mit seinem Vorderteil 1 in die Kurvenhülse 6 gesteckt, die Injektionsnadel schiebt sich in die Nadelschutzkappe 3 und der Antriebsteil des Autoinjektors wird im Gegenuhrzeigersinn gedreht, um seine Verbindung mit dem Vorderteil 1 zu lösen. Die Kurvenhülse wird durch diese Drehung mitgenommen und die Lösekurve 23 sorgt dafür, dass die Klemmstücke 7 die Nadelschutzkappe freigeben. Schliesslich kann die Spritze 2 mitsamt der wieder aufgesetzten Nadelschutzkappe 3 aus dem Vorderteil 1 entnommen werden.To use the device this is either held with one hand or more advantageously inserted into a corresponding charging station 27, as will be described below. Then, the front part 1 of an auto-injector is inserted from above into the cam sleeve 6, and in the front part 1 a syringe filled with an active substance with an injection needle and a needle cap 3 is inserted. Then the drive part of the auto-injector is placed and rotated clockwise. During this rotation is - simultaneously or sequentially, depending on the friction between the individual components - the drive part of the autoinjector coupled to the front part 1 on the aforementioned bayonet connection and the cam sleeve 6 is rotated in the housing 4, wherein the clamping pieces 7 through the Andrückkurve 22nd are pushed inward and clamp the needle cap 3 between them. In the window 8, another, for example, green-colored area 9 is now visible, which signals that the auto-injector is now ready for operation and pulled upwards can be, with the needle cap 3 remains between the clamping pieces 7. After the injection, the whole thing takes place in the reverse order, the auto-injector is inserted with its front part 1 in the cam sleeve 6, the injection needle slides into the needle cap 3 and the drive part of the autoinjector is rotated counterclockwise to its connection with the front part. 1 to solve. The cam sleeve is entrained by this rotation and the release cam 23 ensures that the clamping pieces 7 release the needle cap. Finally, the syringe 2 can be removed together with the reassembled needle cap 3 from the front part 1.

Figur 5 zeigt eine Ladestation 27 für einen Autoinjektor, in welcher die oben beschriebene Vorrichtung 30 in Gebrauchslage gehalten ist. Im Gehäuse 4 der Vorrichtung sind Federzungen 12 mit Rastnasen 13 vorhanden, welche in Rast-Ausnehmungen 14 einrasten, die in einer Aufnahme 34 der Ladestation 27 vorgesehen sind. Die Ladestation ist im dargestellten Beispiel gleichzeitig ein Behältnis, bestehend aus einem Unterteil 28, einem Deckel 29 und einem Verschluss 31. Neben der beschriebenen Aufnahme 34 für die Vorrichtung 30 enthält das dargestellte Beispiel eine Aufnahmemulde 32 für den Antriebsteil des Autoinjektors, eine Aufnahmemulde 33 für die Vorrichtung 30, einen Spannzapfen 35 zum Spannen der Federn des Autoinjektors und eine weitere Aufnahme 36 für ein Werkzeug wie einen Schlüssel zum Anziehen und Lösen einer Injektionsnadel des Typs Luer-Lock. FIG. 5 shows a charging station 27 for an auto-injector, in which the device 30 described above is held in the position of use. In the housing 4 of the device spring tongues 12 are provided with locking lugs 13, which engage in latching recesses 14 which are provided in a receptacle 34 of the charging station 27. The charging station is in the example shown at the same time a container consisting of a lower part 28, a lid 29 and a shutter 31. In addition to the described receptacle 34 for the device 30, the example shown includes a receiving trough 32 for the drive part of the autoinjector, a receiving trough 33 for the device 30, a clamping pin 35 for tensioning the springs of the autoinjector and a further receptacle 36 for a tool such as a key for tightening and loosening a hypodermic needle Luer-Lock.

Claims (11)

  1. A device for temporarily retaining a needle protection cap (3) of an injection needle of an injection apparatus, comprising a housing (4), a receiving portion (6) arranged in the housing (4) for receiving the injection apparatus, and holding means (7), characterised in that the receiving portion (6) is movable in the housing (4) by rotation of the injection apparatus received therein, that the holding means (7) are in a release position in a first position of the receiving portion (6) and the holding means (7) are in a holding position in a second position of the receiving portion (6).
  2. A device according to claim 1 characterised in that the rotation of the receiving portion (6) forms a positive control of the holding means (7).
  3. A device according to claim 1 or claim 2 characterised in that the holding means are in the form of clamping portions (7) which are pivotable towards the longitudinal axis about pivot axes (20) extending parallel to the longitudinal axis of the device.
  4. A device according to claim 3 characterised in that the receiving portion (6) includes a pressure cam (22) which in the second rotational position of the receiving portion (6) urges the clamping portions (7) towards the longitudinal axis of the device.
  5. A device according to claim 3 or claim 4 characterised in that the receiving portion (6) includes a release cam (23) which in the first rotational position of the receiving portion (6) urges the clamping portions (7) away from the longitudinal axis of the device.
  6. A device according to one of the preceding claims characterised by display means (8) which make the rotational position in which the receiving portion (6) is disposed visible from the exterior.
  7. A device according to claim 6 characterised in that the display means include a window (8) in the housing (4), through which it is possible to see in each rotational position of the receiving portion (6) another marking region (9) present thereon.
  8. A loading station (27) for the preparation of an injection apparatus characterised in that it includes a device (30) according to one of the preceding claims.
  9. A loading station according to claim 8 characterised in that the device (30) is removably received in the loading station (27).
  10. A loading station according to claim 8 or claim 9 characterised in that it is in the form of a container (28, 29) for storing parts of an injection apparatus.
  11. A loading station according to one of claims 8 to 10 characterised in that the receiving portion (6) is adapted for the insertion of a front portion (1) of an autoinjector, and a drive portion of the autoinjector can be coupled to the front portion (1), wherein coupling and rotation of the receiving portion (6) can be implemented by rotation of the drive portion.
EP03811706A 2002-11-25 2003-11-17 Device for temporarily retaining a protective needle cap of an injection apparatus Expired - Lifetime EP1567209B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH198502 2002-11-25
CH19852002 2002-11-25
PCT/CH2003/000756 WO2004047896A1 (en) 2002-11-25 2003-11-17 Device for temporarily retaining a protective needle cap of an injection apparatus

Publications (2)

Publication Number Publication Date
EP1567209A1 EP1567209A1 (en) 2005-08-31
EP1567209B1 true EP1567209B1 (en) 2009-01-21

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EP03811706A Expired - Lifetime EP1567209B1 (en) 2002-11-25 2003-11-17 Device for temporarily retaining a protective needle cap of an injection apparatus

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US (1) US7370759B2 (en)
EP (1) EP1567209B1 (en)
JP (1) JP4568117B2 (en)
CN (1) CN100415315C (en)
AT (1) ATE421345T1 (en)
AU (1) AU2003275894B2 (en)
DE (1) DE50311134D1 (en)
WO (1) WO2004047896A1 (en)

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Also Published As

Publication number Publication date
AU2003275894A1 (en) 2004-06-18
JP4568117B2 (en) 2010-10-27
WO2004047896A1 (en) 2004-06-10
DE50311134D1 (en) 2009-03-12
US7370759B2 (en) 2008-05-13
CN1717259A (en) 2006-01-04
AU2003275894B2 (en) 2008-04-03
US20050279664A1 (en) 2005-12-22
CN100415315C (en) 2008-09-03
EP1567209A1 (en) 2005-08-31
JP2006507059A (en) 2006-03-02
ATE421345T1 (en) 2009-02-15

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